George singleton



GEORGE -srNeLnToN, or PATEasoN, NEW JERSEY.

Leiters Patent No. 76,109, dated llfarch 31, 1868.

I IMPROVEMENT IN .SILK-CLEANING KNIFE. i

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'LO ALL WIIOVM IT MAY CONCERN:

Be it known that I, GEORGE SINGLETON, of the city of Paterson, in thecounty of Passaic, and State 'of New Jersey, have invented a new andimproved Silk-Knife; and I do declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings, in which- Figure 1'is a perspective front view, in elevation,of my improved silk-knife, and

Figure 2 is atop view ofthe same. I I I This invention relates to thatclass ofinstrunients having coupled flat blades, and known as slkknives,used in the art of spinning; and the improvement consists in theconstruction, combination, and arrangement of the stand, holders, andblades, by which the said blades -may be regulated, as regards theirrespective distance from each other, withgreat precision, to suit anydesired size of thread, in .the manner fully described hereafter.

A is the bedplate of my improved silk-knife, provided with holes, a a,for fastening it to the bench or frame where it is to be used. 4

B is a stationary blade-holder, which is fastened to the plate A. by thescrew C, and -lrept in its proper place by the stripvD ofv said plate A.i

E is the movable blade-holder, having a foot, F, resting on the plate A7and fastened thereon vby the screw I'I, passing through an oblong hole,I, in the foot F, so that the blade-holder E can mcve'in/lthe directionofthe red line x ze', and'is prevented from moving in any directions 'atright angle from said line bythe screw H.

M is a screw, passing through the hole in' the lug L of the plate Awithout' being screwed therein, and having a lock-nut, I), of ordinaryconstruction. i

K is a lug or heel, fastened to or made all of one piece with. the footF. The screw M is tapped into the lug K, so that, byturning the saidscrew M, the movable blade-holder E will be moved inl the direction ofthe line x an', and, when the screw M is locked by the nut P, it willhold the holder E perfectly motionless.

S and S are the two flat blades, which are fastened to. the holders Band E by the screws'O and O.

e Operation. l

The operation of my improved silk-knife is as follows: The blades beingfastened to the holders in such a manner that they willgbe perfectlyparallel, having their edges, R R', in contact, thescrew M is turned tothe right, causing the head of .said Vscrew M to come to a bearing onthe lug Il, and drawing the foot, F, towards the said lug Il. This willcause the blades to bepartedfas the plate A is plane, and the foot, F,titted perfectly on the same; and the edges, AIt R', of the blades S S.are at Aright angles with the plane of the plate A, which becomes theline of motion of the holder E and blade S. Itl follows that, whateverthe distance between the plates S S', their edges, It R", will alwaysremain parallel to each other.

When the distance between the blades S S is toogreat, the screw M isturned to the left, and, when the blades S S are properly set, thelock-nut- P'is tightened, which keeps the knives perfectly still.

I know that silk-knives have been made, where the blades are adjustableon stationary holders, by means of slotted holesvin the blades, theblades being adjusted by knocking on their edges, and,when in position,are screwed fast. I know also, that blades have been fastened from acommon centre, at one of'. their ends,` which rendered them susceptibleof being drawn apart and brought together at their other ends; and, inthat last arrangement, the edges of the knives could nevcr'be parallel,causing an irregular gauging of the knives. Neither of these devices orarrangements do I claim; but

What I claim as my invention, and desire to secure by Letters Patent ofthe United States, is-

Thevimproved parallcllysacting silk-ltnife, composed of the blade S,holder B, andlplate A, the blade Sl, holder E, foot, F, slotted hole I,screw II, lugs K ane'd L, and screw M, combined and arranged in themanner and so as to operate substantially as set forth.

' GEORGE SINGLETON. [n 5.] Witnesses:

H. GENGEMBRE HUBERT, L- ANDREW R. Farm.

